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FR2929041B1 - MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING - Google Patents

MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING

Info

Publication number
FR2929041B1
FR2929041B1 FR0851747A FR0851747A FR2929041B1 FR 2929041 B1 FR2929041 B1 FR 2929041B1 FR 0851747 A FR0851747 A FR 0851747A FR 0851747 A FR0851747 A FR 0851747A FR 2929041 B1 FR2929041 B1 FR 2929041B1
Authority
FR
France
Prior art keywords
magnetic
layer
magnetic element
storage
writing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR0851747A
Other languages
French (fr)
Other versions
FR2929041A1 (en
Inventor
Jean Pierre Nozieres
Ioan Lucian Prejbeanu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crocus Technology SA
Original Assignee
Crocus Technology SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Crocus Technology SA filed Critical Crocus Technology SA
Priority to FR0851747A priority Critical patent/FR2929041B1/en
Priority to AT09721466T priority patent/ATE557397T1/en
Priority to PCT/EP2009/053111 priority patent/WO2009115505A1/en
Priority to EP09721466A priority patent/EP2255362B1/en
Priority to JP2011500187A priority patent/JP2011517502A/en
Publication of FR2929041A1 publication Critical patent/FR2929041A1/en
Priority to US12/872,873 priority patent/US8228716B2/en
Application granted granted Critical
Publication of FR2929041B1 publication Critical patent/FR2929041B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/02—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements
    • G11C11/16—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using magnetic elements using elements in which the storage effect is based on magnetic spin effect
    • G11C11/165—Auxiliary circuits
    • G11C11/1675—Writing or programming circuits or methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mram Or Spin Memory Techniques (AREA)
  • Hall/Mr Elements (AREA)
  • Magnetic Heads (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

Magnetic element with thermally-assisted magnetic-field writing or thermally-assisted spin-transfer writing, comprising: a reference magnetic layer having a fixed direction magnetization; a storage magnetic layer exchange-pinned with an antiferromagnetic layer, wherein the magnetization direction of the storage layer can vary when said element can be heated to a temperature at least higher than a critical temperature of the antiferromagnetic layer; a tunnel barrier, provided between the reference layer and the storage layer; wherein the magnetic reference layer, and/or the magnetic storage layer includes at least one electrically-resistive thin layer for heating the magnetic element. The magnetic element disclosed herein has a voltage gain of typically 10 to 50% compared to conventional magnetic elements and shows a reduction of the stress induced during a writing operation as well as a reduction of the aging.
FR0851747A 2008-03-18 2008-03-18 MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING Expired - Fee Related FR2929041B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR0851747A FR2929041B1 (en) 2008-03-18 2008-03-18 MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING
AT09721466T ATE557397T1 (en) 2008-03-18 2009-03-17 MAGNETIC ELEMENT WITH A HEAT-ASSISTED WRITING PROCESS
PCT/EP2009/053111 WO2009115505A1 (en) 2008-03-18 2009-03-17 Magnetic member with thermally assisted writing
EP09721466A EP2255362B1 (en) 2008-03-18 2009-03-17 Magnetic member with thermally assisted writing
JP2011500187A JP2011517502A (en) 2008-03-18 2009-03-17 Magnetic element using heat-assisted writing
US12/872,873 US8228716B2 (en) 2008-03-18 2010-08-31 Magnetic element with thermally assisted writing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0851747A FR2929041B1 (en) 2008-03-18 2008-03-18 MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING

Publications (2)

Publication Number Publication Date
FR2929041A1 FR2929041A1 (en) 2009-09-25
FR2929041B1 true FR2929041B1 (en) 2012-11-30

Family

ID=39938118

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0851747A Expired - Fee Related FR2929041B1 (en) 2008-03-18 2008-03-18 MAGNETIC ELEMENT WITH THERMALLY ASSISTED WRITING

Country Status (6)

Country Link
US (1) US8228716B2 (en)
EP (1) EP2255362B1 (en)
JP (1) JP2011517502A (en)
AT (1) ATE557397T1 (en)
FR (1) FR2929041B1 (en)
WO (1) WO2009115505A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2325846B1 (en) * 2009-11-12 2015-10-28 Crocus Technology S.A. A magnetic tunnel junction memory with thermally assisted writing
EP2447948B1 (en) * 2010-10-26 2014-12-31 Crocus Technology S.A. Thermally assisted magnetic random access memory element with improved endurance
EP2575136B1 (en) * 2011-09-30 2014-12-24 Crocus Technology S.A. Self-reference magnetic random access memory (MRAM) cell comprising ferromagnetic layers
US20150129946A1 (en) * 2013-11-13 2015-05-14 International Business Machines Corporation Self reference thermally assisted mram with low moment ferromagnet storage layer
US9524765B2 (en) 2014-08-15 2016-12-20 Qualcomm Incorporated Differential magnetic tunnel junction pair including a sense layer with a high coercivity portion
JP6630035B2 (en) * 2014-09-18 2020-01-15 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． Magnetic tunnel junction device and magnetic random access memory
FR3031622B1 (en) * 2015-01-14 2018-02-16 Centre National De La Recherche Scientifique MAGNETIC MEMORY POINT
US10510390B2 (en) * 2017-06-07 2019-12-17 International Business Machines Corporation Magnetic exchange coupled MTJ free layer having low switching current and high data retention
US10332576B2 (en) 2017-06-07 2019-06-25 International Business Machines Corporation Magnetic exchange coupled MTJ free layer with double tunnel barriers having low switching current and high data retention
CN112289923B (en) * 2019-07-25 2023-05-23 上海磁宇信息科技有限公司 Magnetic tunnel junction structure of magnetic random access memory
CN112310272B (en) * 2019-07-25 2023-05-23 上海磁宇信息科技有限公司 Magnetic tunnel junction structure of magnetic random access memory
US11552242B2 (en) * 2021-04-08 2023-01-10 Regents Of The University Of Minnesota Weyl semimetal material for magnetic tunnel junction

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820475C1 (en) * 1988-06-16 1989-12-21 Kernforschungsanlage Juelich Gmbh, 5170 Juelich, De
US5159513A (en) * 1991-02-08 1992-10-27 International Business Machines Corporation Magnetoresistive sensor based on the spin valve effect
US5343422A (en) * 1993-02-23 1994-08-30 International Business Machines Corporation Nonvolatile magnetoresistive storage device using spin valve effect
US6021065A (en) * 1996-09-06 2000-02-01 Nonvolatile Electronics Incorporated Spin dependent tunneling memory
US5583725A (en) * 1994-06-15 1996-12-10 International Business Machines Corporation Spin valve magnetoresistive sensor with self-pinned laminated layer and magnetic recording system using the sensor
US5640343A (en) * 1996-03-18 1997-06-17 International Business Machines Corporation Magnetic memory array using magnetic tunnel junction devices in the memory cells
DE19982238T1 (en) * 1998-10-12 2001-02-15 Fujitsu Ltd Magnetic sensor, magnetic head, magnetic encoder and hard disk device
JP4896587B2 (en) * 2000-10-20 2012-03-14 株式会社東芝 Magnetoresistive element, magnetic head, and magnetic reproducing apparatus
JP3807254B2 (en) * 2001-05-30 2006-08-09 ソニー株式会社 Magnetoresistive effect element, magnetoresistive effect type magnetic sensor, and magnetoresistive effect type magnetic head
FR2832542B1 (en) * 2001-11-16 2005-05-06 Commissariat Energie Atomique MAGNETIC DEVICE WITH MAGNETIC TUNNEL JUNCTION, MEMORY AND METHODS OF WRITING AND READING USING THE DEVICE
US6958927B1 (en) * 2002-10-09 2005-10-25 Grandis Inc. Magnetic element utilizing spin-transfer and half-metals and an MRAM device using the magnetic element
US7023723B2 (en) * 2002-11-12 2006-04-04 Nve Corporation Magnetic memory layers thermal pulse transitions
CN101114694A (en) * 2002-11-26 2008-01-30 株式会社东芝 Magnetic Units and Magnetic Storage
KR100568512B1 (en) * 2003-09-29 2006-04-07 삼성전자주식회사 Magnetothermal Ramcells with a Heat Generating Layer and Methods of Driving Them
FR2866750B1 (en) * 2004-02-23 2006-04-21 Centre Nat Rech Scient MAGNETIC MEMORY MEMORY WITH MAGNETIC TUNNEL JUNCTION AND METHOD FOR ITS WRITING
US7414881B2 (en) * 2004-03-31 2008-08-19 Nec Corporation Magnetization direction control method and application thereof to MRAM
US7088609B2 (en) * 2004-05-11 2006-08-08 Grandis, Inc. Spin barrier enhanced magnetoresistance effect element and magnetic memory using the same
US6980486B1 (en) * 2005-03-21 2005-12-27 The United States Of America As Represented By The Secretary Of The Navy Acquisition system particularly suited for tracking targets having high bearing rates
US7489541B2 (en) * 2005-08-23 2009-02-10 Grandis, Inc. Spin-transfer switching magnetic elements using ferrimagnets and magnetic memories using the magnetic elements

Also Published As

Publication number Publication date
EP2255362B1 (en) 2012-05-09
WO2009115505A1 (en) 2009-09-24
EP2255362A1 (en) 2010-12-01
US8228716B2 (en) 2012-07-24
ATE557397T1 (en) 2012-05-15
JP2011517502A (en) 2011-06-09
FR2929041A1 (en) 2009-09-25
US20100328808A1 (en) 2010-12-30

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Legal Events

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Effective date: 20131129